Valgrind complained that the g_list_copy_deep call here leaks
memory. In fact, the set_property implementation already takes
care of copying the list and reffing the objects, so don't
do it here.

https://bugzilla.gnome.org/show_bug.cgi?id=778804

Currently, archive entries with absolute paths lose their paths when
extracting, or even cause crashes. The code expects that the
`autoar_extractor_do_sanitize_pathname` function will always return paths
inside, or equal to the destination directory, but this is not true. The
problem is that the `g_file_get_child` resp. `g_file_resolve_relative_path`
functions expect relative paths, but are used with absolute paths also.
Let's convert absolute paths to relative ones to ensure that they will
be exctracted as relative to the destination dir. Also, update the
corresponding test case to confirm this.

Fixes: https://gitlab.gnome.org/GNOME/gnome-autoar/-/issues/32

The AutoarCompressor object returns the format when asked for a filter.

Fix the obvious oversight from commit 2901c81d.

The meson package is not part of the CI image as Autotools are used
currently. Let's add meson as a preparation for the upcoming meson port.

There are various problems with the rawhide image currently and I don't
know how to workaround them. Let's use fedora:latest (temporarily) to fix
our pipeline.

Let's add a check for potential ABI breaks to not break ABI by mistake,
or to not forget to update the library version.

`AutoarExtractor` supports extraction of encrypted archives. It would be nice
to have support for encrypted archives also in `AutoarCompressor`. Though the
libarchive library doesn't provide a much. It supports encryption only for the
ZIP format. There is a choice between `zipcrypt`, `aes128` and `aes256`. Given
the phact that `zipcrypt` is insecure and not recommended, I think it is fine
to hardcode `aes256`. It is probably a bit slower then `aes128`, but more secure.
So the only thing which needs to be set is a passphrase. Let's add
`autoar_compressor_set_passphrase` to allow creating encrypted archives.

Relates: https://gitlab.gnome.org/GNOME/nautilus/-/issues/822

The test utils doesn't support encrypted archives as it is not possible
to specify password currently. Let's simply add an password argument to
have a simple way to test this feature.

meson is a build system focused on speed an ease of use, which
helps speeding up the software development.

Co-authored-by: Peter Keresztes Schmidt <carbenium@outlook.com>

To avoid the burden of maintaining multiple build systems, autotools
support has been removed.

The gschema file is not used so it has been removed.

The `test-extract-unit` suite expects that the source directory is the
same as the build directory. Consequently, it fails over `ninja test`
as it doesn't see the test files. Let's adapt the codes to use the
`G_TEST_SRCDIR`  so it can be used from the build dir.

The `filename` tag in enum files shows the whole file path. This has
been replaced with the `basename` tag just to show the file name.